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Math Help - midpoint and distance formulas

  1. #1
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    Joined
    Sep 2008
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    1

    Unhappy midpoint and distance formulas

    ughhh i need help solving this

    find XZ
    well the directions say M is the midpoint of the segment, find the indicated lengh sooo
    X--------M--------Z
    ok well from X to M would be 2x+35 and then from M to Z would be 5x-22.



    find XZ.
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  2. #2
    Newbie
    Joined
    Sep 2008
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    So since m is the mid point, the distances on both sides are the same…sooo:
    2x+35 = 5x-22.
    Thus rearrange for x:

    57 = 3x
    x = 57/3


    You also know that the total length is 2x+35) + (5x-22)
    Or 2(2x+35)
    Or 2(5x-22)

    (I guess the question is asking you for total length)
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